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Chen J, Zhao Q, Tang J, Lei X, Zhang J, Li Y, Li J, Li Y, Zuo Y. Enzyme-Activated Biomimetic Vesicles Confining Mineralization for Bone Maturation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33005-33020. [PMID: 38900067 DOI: 10.1021/acsami.4c03978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Inspired by the crucial role of matrix vesicles (MVs), a series of biomimetic vesicles (BVs) fabricated by calcium glycerophosphate (CaGP) modified polyurethane were designed to mediate the mineralization through in situ enzyme activation for bone therapy. In this study, alkaline phosphatase (ALP) was harbored in the porous BVs by adsorption (Ad-BVs) or entrapment (En-BVs). High encapsulation of ALP on En-BVs was effectively self-activating by calcium ions of CaGP-modified PU that specifically hydrolyzed the organophosphorus (CaGP) to inorganic phosphate, thus promoting the formation of the highly oriented bone-like apatite in vitro. Enzyme-catalyzed kinetics confirms the regulation of apatite crystallization by the synergistic action of self-activated ALP and the confined microcompartments of BVs. This leads to a supersaturated microenvironment, with the En-BVs group exhibiting inorganic phosphate (Pi) levels 4.19 times higher and Ca2+ levels 3.67 times higher than those of simulated body fluid (SBF). Of note, the En-BVs group exhibited excellent osteo-inducing differentiation of BMSCs in vitro and the highest maturity with reduced bone loss in rat femoral defect in vivo. This innovative strategy of biomimetic vesicles is expected to provide valuable insights into the enzyme-activated field of bone therapy.
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Affiliation(s)
- Jieqiong Chen
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Qing Zhao
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Jiajing Tang
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Xiaoyu Lei
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Jinzheng Zhang
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Yuping Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Jidong Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu, 610064, PR China
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2
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Li W, Bilal M, Singh AK, Sher F, Ashraf SS, Franco M, Américo-Pinheiro JHP, Iqbal HMN. Broadening the Scope of Biocatalysis Engineering by Tailoring Enzyme Microenvironment: A Review. Catal Letters 2022. [DOI: 10.1007/s10562-022-04065-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Abstract
We report the synthesis of novel poly(ethylene glycol) and poly(dimethyl siloxane) (PEG and PDMS, respectively) bottlebrush amphiphilic polymer co-networks (B-APCNs) with high gel fractions by a grafting-through ring-opening metathesis polymerization. By varying the volume fraction of PEG (ϕPEG), we alter the crystallinity of the networks, achieving complete suppression of PEG crystallinity at ϕPEG=0.35. Furthermore, we show that the crystallinity of these networks can be tuned to alter their moduli. Through dynamic mechanical analysis, we show that the storage and loss moduli of networks with completely suppressed crystallinity (ϕPEG=0.35) behave similarly to a PDMS homopolymer bottlebrush network. These bottlebrush networks represent an unexplored architecture for the field of amphiphilic polymer co-networks.
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Affiliation(s)
- Brandon R. Clarke
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Gregory N. Tew
- Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
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4
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Wilhelm SA, Maricanov M, Brandt V, Katzenberg F, Tiller JC. Amphiphilic polymer conetworks with ideal and non-ideal swelling behavior demonstrated by small angle X-ray scattering. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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5
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Bast L, Klockars KW, Greca LG, Rojas OJ, Tardy BL, Bruns N. Infiltration of Proteins in Cholesteric Cellulose Structures. Biomacromolecules 2021; 22:2067-2080. [PMID: 33899466 PMCID: PMC8154265 DOI: 10.1021/acs.biomac.1c00183] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/09/2021] [Indexed: 11/30/2022]
Abstract
Cellulose nanocrystals (CNCs) can spontaneously self-assemble into chiral nematic (cn) structures, similar to natural cholesteric organizations. The latter display highly dissipative fracture propagation mechanisms given their "brick" (particles) and "mortar" (soft matrix) architecture. Unfortunately, CNCs in liquid media have strong supramolecular interactions with most macromolecules, leading to aggregated suspensions. Herein, we describe a method to prepare nanocomposite materials from chiral nematic CNCs (cn-CNCs) with strongly interacting secondary components. Films of cn-CNCs were infiltrated at various loadings with strongly interacting silk proteins and bovine serum albumin. For comparison and to determine the molecular weight range of macromolecules that can infiltrate cn-CNC films, they were also infiltrated with a range of poly(ethylene glycol) polymers that do not interact strongly with CNCs. The extent and impact of infiltration were evaluated by studying the optical reflection properties of the resulting hybrid materials (UV-vis spectroscopy), while fracture dissipation mechanisms were observed via electron microscopy. We propose that infiltration of cn-CNCs enables the introduction of virtually any secondary phase for nanocomposite formation that is otherwise not possible using simple mixing or other conventional approaches.
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Affiliation(s)
- Livia
K. Bast
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Thomas
Graham Building, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
| | - Konrad W. Klockars
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16300, 00076 Aalto, Finland
| | - Luiz G. Greca
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16300, 00076 Aalto, Finland
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16300, 00076 Aalto, Finland
- Departments
of Chemical and Biological Engineering, Chemistry, and Wood Science, University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Blaise L. Tardy
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O.
Box 16300, 00076 Aalto, Finland
| | - Nico Bruns
- Adolphe
Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
- Department
of Pure and Applied Chemistry, University
of Strathclyde, Thomas
Graham Building, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
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6
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Development and characterization of photo-responsive cinnamoly modified alginate. Carbohydr Polym 2021; 260:117771. [DOI: 10.1016/j.carbpol.2021.117771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/16/2021] [Accepted: 02/02/2021] [Indexed: 11/19/2022]
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7
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Tian R, Xu J, Luo Q, Hou C, Liu J. Rational Design and Biological Application of Antioxidant Nanozymes. Front Chem 2021; 8:831. [PMID: 33644000 PMCID: PMC7905316 DOI: 10.3389/fchem.2020.00831] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/07/2020] [Indexed: 12/13/2022] Open
Abstract
Nanozyme is a type of nanostructured material with intrinsic enzyme mimicking activity, which has been increasingly studied in the biological field. Compared with natural enzymes, nanozymes have many advantages, such as higher stability, higher design flexibility, and more economical production costs. Nanozymes can be used to mimic natural antioxidant enzymes to treat diseases caused by oxidative stress through reasonable design and modification. Oxidative stress is caused by imbalances in the production and elimination of reactive oxygen species (ROS) and reactive nitrogen species (RNS). This continuous oxidative stress can cause damage to some biomolecules and significant destruction to cell structure and function, leading to many physiological diseases. In this paper, the methods to improve the antioxidant properties of nanozymes were reviewed, and the applications of nanozyme antioxidant in the fields of anti-aging, cell protection, anti-inflammation, wound repair, cancer, traumatic brain injury, and nervous system diseases were introduced. Finally, the future challenges and prospects of nanozyme as an ideal antioxidant were discussed.
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Affiliation(s)
- Ruizhen Tian
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.,College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Chunxi Hou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China
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8
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Dubey NC, Tripathi BP. Nature Inspired Multienzyme Immobilization: Strategies and Concepts. ACS APPLIED BIO MATERIALS 2021; 4:1077-1114. [PMID: 35014469 DOI: 10.1021/acsabm.0c01293] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In a biological system, the spatiotemporal arrangement of enzymes in a dense cellular milieu, subcellular compartments, membrane-associated enzyme complexes on cell surfaces, scaffold-organized proteins, protein clusters, and modular enzymes have presented many paradigms for possible multienzyme immobilization designs that were adapted artificially. In metabolic channeling, the catalytic sites of participating enzymes are close enough to channelize the transient compound, creating a high local concentration of the metabolite and minimizing the interference of a competing pathway for the same precursor. Over the years, these phenomena had motivated researchers to make their immobilization approach naturally realistic by generating multienzyme fusion, cluster formation via affinity domain-ligand binding, cross-linking, conjugation on/in the biomolecular scaffold of the protein and nucleic acids, and self-assembly of amphiphilic molecules. This review begins with the discussion of substrate channeling strategies and recent empirical efforts to build it synthetically. After that, an elaborate discussion covering prevalent concepts related to the enhancement of immobilized enzymes' catalytic performance is presented. Further, the central part of the review summarizes the progress in nature motivated multienzyme assembly over the past decade. In this section, special attention has been rendered by classifying the nature-inspired strategies into three main categories: (i) multienzyme/domain complex mimic (scaffold-free), (ii) immobilization on the biomolecular scaffold, and (iii) compartmentalization. In particular, a detailed overview is correlated to the natural counterpart with advances made in the field. We have then discussed the beneficial account of coassembly of multienzymes and provided a synopsis of the essential parameters in the rational coimmobilization design.
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Affiliation(s)
- Nidhi C Dubey
- Institute of Molecular Medicine, Jamia Hamdard, New Delhi 110062, India
| | - Bijay P Tripathi
- Department of Materials Science and Engineering, Indian institute of Technology Delhi, New Delhi 110016, India
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9
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Benski L, Viran I, Katzenberg F, Tiller JC. Small‐Angle X‐Ray Scattering Measurements on Amphiphilic Polymer Conetworks Swollen in Orthogonal Solvents. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lena Benski
- Department of Bio‐ and Chemical Engineering TU Dortmund Emil‐Figge‐Straße 66 Dortmund 44227 Germany
| | - Ismail Viran
- Department of Bio‐ and Chemical Engineering TU Dortmund Emil‐Figge‐Straße 66 Dortmund 44227 Germany
| | - Frank Katzenberg
- Department of Bio‐ and Chemical Engineering TU Dortmund Emil‐Figge‐Straße 66 Dortmund 44227 Germany
| | - Joerg C. Tiller
- Department of Bio‐ and Chemical Engineering TU Dortmund Emil‐Figge‐Straße 66 Dortmund 44227 Germany
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10
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11
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Designing and investigation of photo-active gellan gum for the efficient immobilization of catalase by entrapment. Int J Biol Macromol 2020; 161:539-549. [PMID: 32544585 DOI: 10.1016/j.ijbiomac.2020.06.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/11/2022]
Abstract
A photo-active gellan gum (Gel) derivative was developed by amide bond combination with trans-4-[p-(amino)styryl]pyridine (SP). The SP-Gel was cross-linked by UV curing via the intermolecular 2π + 2π cycloaddition of the inserted SP-CH=CH- moieties. The chemical structure of the obtained photo-crosslinkable biopolymer was investigated before and after the UV curing and the progress of the performed 2π + 2π cycloaddition-based cross-linking was detected via UV-visible light spectra. SP-Gel was evaluated as a polymeric matrix for the immobilization of catalase via entrapment technique. The synthesized biopolymer was mixed with the catalase and molded in the form of membranes that were UV cured to encapsulate the enzyme. The membranes were able to entrap 0.75 mg/cm2 with retained activity reached above 95%. The immobilized catalase displayed higher thermal stability and higher resistance toward the environmental pH disturbances compared to the free enzyme. Also, despite the observed lower catalase-H2O2 affinity upon the entrapment that was indicated from the performed kinetic studies, the reusability and storage stability experiments revealed the economic value of the entire process by preserving around 95% and 83% of the initial catalase activity after the fifth and tenth operation cycles, respectively.
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12
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Mugemana C, Grysan P, Dieden R, Ruch D, Bruns N, Dubois P. Self‐Healing Metallo‐Supramolecular Amphiphilic Polymer Conetworks. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.201900432] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Clément Mugemana
- Materials Research and Technology DepartmentLuxembourg Institute of Science and Technology 5 rue Bommel–ZAE Robert Steichen L‐4940 Hautcharage Luxembourg
| | - Patrick Grysan
- Materials Research and Technology DepartmentLuxembourg Institute of Science and Technology 5 rue Bommel–ZAE Robert Steichen L‐4940 Hautcharage Luxembourg
| | - Reiner Dieden
- Materials Research and Technology DepartmentLuxembourg Institute of Science and Technology 5 rue Bommel–ZAE Robert Steichen L‐4940 Hautcharage Luxembourg
| | - David Ruch
- Materials Research and Technology DepartmentLuxembourg Institute of Science and Technology 5 rue Bommel–ZAE Robert Steichen L‐4940 Hautcharage Luxembourg
| | - Nico Bruns
- Thomas Graham BuildingDepartment of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1BX UK
| | - Philippe Dubois
- Center of Innovation and Research in Materials PolymersLaboratory of Polymeric and Composite MaterialsUniversité de Mons Place du Parc 23B‐7000 Mons Belgium
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13
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Preparation of photo-crosslinkable cinnamate modified hyaluronic acid for immobilization of horseradish peroxidase. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.10.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Peptide-Mediated Immobilization on Magnetoferritin for Enzyme Recycling. NANOMATERIALS 2019; 9:nano9111558. [PMID: 31684120 PMCID: PMC6915604 DOI: 10.3390/nano9111558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 11/30/2022]
Abstract
Ferritin possess favorable properties because its exterior and interior surface can be applied to generate functional nanomaterials, which make them possible for enzyme immobilization and recycling. Here, we report the noncovalent immobilization of a genetically modified β-glucosidase onto the outer surface of synthetic magnetoferritin through the electrostatic interaction of a heterodimeric coiled-coil protein formed by coils containing lysine residues (K-coils) and coils containing glutamic acid (E-coils). The immobilized enzyme was characterized, and its enzymatic properties were evaluated. Furthermore, reusability of immobilized enzyme was demonstrated in aqueous solution under an applied magnetic field. The results showed that magnetoferritin was successfully prepared and it was an excellent support for enzyme immobilization. After three times usages, the retention rates were 93.75%, 82.5%, and 56.25%, respectively, demonstrating that immobilized enzyme possessed good retention efficiency and could be used as potential carrier for other biomolecules. The strategy of enzyme immobilization developed in this work can be applied, in general, to many other target molecules.
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15
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Ulrich S, Osypova A, Panzarasa G, Rossi RM, Bruns N, Boesel LF. Pyranine-Modified Amphiphilic Polymer Conetworks as Fluorescent Ratiometric pH Sensors. Macromol Rapid Commun 2019; 40:e1900360. [PMID: 31523877 DOI: 10.1002/marc.201900360] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/21/2019] [Indexed: 01/04/2023]
Abstract
The fluorescent dye 8-hydroxypyrene-1,3,6-trisulfonate (pyranine) combines high photostability with ratiometric pH detection in the physiological range, making it a prime candidate for optical sensors in biomedical applications, such as pH-based chronic wound monitoring. However, pyranine's high water solubility and the difficulty of covalent attachment pose severe limitations in terms of leaching from sensor matrices. Herein, pyranine-modified nanophase-separated amphiphilic polymer conetworks (APCNs) are reported as fluorescent ratiometric pH sensors. The thin, freestanding APCN membranes composed of one hydrophilic and one hydrophobic polymer provide an optically transparent, flexible, and stable ideal matrix that enables contact between dye and aqueous environment. An active ester-based conjugation approach results in a highly homogeneous and stable pyranine modification of the APCN's hydrophilic phase. This concept effectively solves the leaching challenge for pyranine without compromising its functionality, which is demonstrated by ratiometric pH detection in the range of pH 5-9.
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Affiliation(s)
- Sebastian Ulrich
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland.,Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Alina Osypova
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Guido Panzarasa
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.,Department of Pure and Applied Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Luciano F Boesel
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
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16
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Bilal M, Zhao Y, Noreen S, Shah SZH, Bharagava RN, Iqbal HMN. Modifying bio-catalytic properties of enzymes for efficient biocatalysis: a review from immobilization strategies viewpoint. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2018.1564744] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Yuping Zhao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Sadia Noreen
- Department of Biochemistry, Government College Women University, Faisalabad, Pakistan
| | | | - Ram Naresh Bharagava
- Department of Microbiology (DM), Laboratory for Bioremediation and Metagenomics Research (LBMR), Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, India
| | - Hafiz M. N. Iqbal
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey, Mexico
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17
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Star PEG-based amphiphilic polymers: synthesis, characterization and swelling behaviors. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2476-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Ulrich S, Sadeghpour A, Rossi RM, Bruns N, Boesel LF. Wide Range of Functionalized Poly(N-alkyl acrylamide)-Based Amphiphilic Polymer Conetworks via Active Ester Precursors. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00841] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sebastian Ulrich
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | | | | | - Nico Bruns
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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19
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Multilayer petal-like enzymatic-inorganic hybrid micro-spheres [CPO-(Cu/Co/Cd)3(PO4)2] with high bio-catalytic activity. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.03.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Kato G, Sato A, Tokuyama H. Continuous Esterification using Lipase-Entrapped Amphiphilic Copolymeric Gel Beads. KAGAKU KOGAKU RONBUN 2018. [DOI: 10.1252/kakoronbunshu.44.185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gakuto Kato
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
| | - Ayumi Sato
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
| | - Hideaki Tokuyama
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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21
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Gao J, Zhao B, Wang M, Serrano MAC, Zhuang J, Ray M, Rotello VM, Vachet RW, Thayumanavan S. Supramolecular Assemblies for Transporting Proteins Across an Immiscible Solvent Interface. J Am Chem Soc 2018; 140:2421-2425. [PMID: 29431433 DOI: 10.1021/jacs.7b13245] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polymeric supramolecular assemblies that can effectively transport proteins across an incompatible solvent interface are described. We show that electrostatics and ligand-protein interactions can be used to selectively transport proteins from an aqueous phase to organic phase. These transported proteins have been shown to maintain their tertiary structure and function. This approach opens up new possibilities for application of supramolecular assemblies in sensing, diagnostics and catalysis.
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Affiliation(s)
- Jingjing Gao
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Bo Zhao
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Meizhe Wang
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Mahalia A C Serrano
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Jiaming Zhuang
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Moumita Ray
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Richard W Vachet
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - S Thayumanavan
- Department of Chemistry, University of Massachusetts , Amherst, Massachusetts 01003, United States
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22
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A printable hydrogel microarray for drug screening avoids false positives associated with promiscuous aggregating inhibitors. Nat Commun 2018; 9:602. [PMID: 29426913 PMCID: PMC5807445 DOI: 10.1038/s41467-018-02956-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/09/2018] [Indexed: 12/22/2022] Open
Abstract
A significant problem in high-throughput drug screening is the disproportionate number of false hits associated with drug candidates that form colloidal aggregates. Such molecules, referred to as promiscuous inhibitors, nonspecifically inhibit multiple enzymes and are thus not useful as potential drugs. Here, we report a printable hydrogel-based drug-screening platform capable of non-ambiguously differentiating true enzyme inhibitors from promiscuous aggregating inhibitors, critical for accelerating the drug discovery process. The printed hydrogels can both immobilize as well as support the activity of entrapped enzymes against drying or treatment with a protease or chemical denaturant. Furthermore, the printed hydrogel can be applied in a high-throughput microarray-based screening platform (consistent with current practice) to rapidly ( <25 min) and inexpensively identify only clinically promising lead compounds with true inhibitory potential as well as to accurately quantify the dose–response relationships of those inhibitors, all while using 95% less sample than required for a solution assay. False positive results significantly slow down the drug discovery process. Here, the authors developed a gel serving as a screening platform in which enzymes can be stored, stabilized, and protected from most of the compounds that typically cause these misleading results.
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23
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Estrina GA, Gur’eva LL, Komarov BA, Bogdanova LM, Kurochkin SA, Estrin YI. The Study of Formation of Amphiphilic Network Block Copolymer of N-Isopropylacrylamide. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418010049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Zeng D, Ribbe A, Hayward RC. Anisotropic and Interconnected Nanoporous Materials from Randomly End-Linked Copolymer Networks. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Di Zeng
- Department of Polymer Science
and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003-9263, United States
| | - Alexander Ribbe
- Department of Polymer Science
and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003-9263, United States
| | - Ryan C. Hayward
- Department of Polymer Science
and Engineering, University of Massachusetts Amherst, 120 Governors Drive, Amherst, Massachusetts 01003-9263, United States
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25
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Guzman G, Bhaway SM, Nugay T, Vogt BD, Cakmak M. Transport-Limited Adsorption of Plasma Proteins on Bimodal Amphiphilic Polymer Co-Networks: Real-Time Studies by Spectroscopic Ellipsometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2900-2910. [PMID: 28240027 DOI: 10.1021/acs.langmuir.7b00281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Traditional hydrogels are commonly limited by poor mechanical properties and low oxygen permeability. Bimodal amphiphilic co-networks (β-APCNs) are a new class of materials that can overcome these limitations by combining hydrophilic and hydrophobic polymer chains within a network of co-continuous morphology. Applications that can benefit from these improved properties include therapeutic contact lenses, enzymatic catalysis supports, and immunoisolation membranes. The continuous hydrophobic phase could potentially increase the adsorption of plasma proteins in blood-contacting medical applications and compromise in vivo material performance, so it is critical to understand the surface characteristics of β-APCNs and adsorption of plasma proteins on β-APCNs. From real-time spectroscopic visible (Vis) ellipsometry measurements, plasma protein adsorption on β-APCNs is shown to be transport-limited. The adsorption of proteins on the β-APCNs is a multistep process with adsorption to the hydrophilic surface initially, followed by diffusion into the material to the internal hydrophilic/hydrophobic interfaces. Increasing the cross-linking of the PDMS phase reduced the protein intake by limiting the transport of large proteins. Moreover, the internalization of the proteins is confirmed by the difference between the surface-adsorbed protein layer determined from XPS and bulk thickness change from Vis ellipsometry, which can differ up to 20-fold. Desorption kinetics depend on the adsorption history with rapid desorption for slow adsorption rates (i.e., slow-diffusing proteins within the network), whereas proteins with fast adsorption kinetics do not readily desorb. This behavior can be directly related to the ability of the protein to spread or reorient, which affects the binding energy required to bind to the internal hydrophobic interfaces.
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Affiliation(s)
- Gustavo Guzman
- Polymer Engineering Department, The University of Akron , Akron, Ohio 44325, United States
| | - Sarang M Bhaway
- Polymer Engineering Department, The University of Akron , Akron, Ohio 44325, United States
| | - Turgut Nugay
- Chemistry Department, Polymer Research Center, Boğaziçi University , Bebek, 34342 Istanbul, Turkey
| | - Bryan D Vogt
- Polymer Engineering Department, The University of Akron , Akron, Ohio 44325, United States
| | - Mukerrem Cakmak
- Polymer Engineering Department, The University of Akron , Akron, Ohio 44325, United States
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26
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Li B, Nam H, Zhao J, Chang J, Lingappan N, Yao F, Lee TH, Lee YH. Nanoreactor of Nickel-Containing Carbon-Shells as Oxygen Reduction Catalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605083. [PMID: 27943418 DOI: 10.1002/adma.201605083] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/21/2016] [Indexed: 06/06/2023]
Abstract
A Pt-free nanoreactor, consisting of N-doped hollow carbon nanocapsules with encapsulated Ni nanoparticles, is developed for high-performance oxygen reduction reaction (ORR) catalyst. The nanoreactor effect improves its catalytic activity for ORR mainly in a 4e- pathway. The presence of Ni nanoparticles within the nanoreactor significantly enhances the stability with a current retention of 90% after 40 h.
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Affiliation(s)
- Bing Li
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Honggi Nam
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
- Department of Physics, Sungkyunkwan University, Suwon, 16419, Korea
| | - Jiong Zhao
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Jian Chang
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Niranjanmurthi Lingappan
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Fei Yao
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Tae Hoon Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
| | - Young Hee Lee
- Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Korea
- Center for Integrated Nanostructure Physics, Institute for Basic Science (IBS), Sungkyunkwan University, Suwon, 16419, Korea
- Department of Physics, Sungkyunkwan University, Suwon, 16419, Korea
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27
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Fodor C, Kali G, Thomann R, Thomann Y, Iván B, Mülhaupt R. Nanophasic morphologies as a function of the composition and molecular weight of the macromolecular cross-linker in poly(N-vinylimidazole)-l-poly(tetrahydrofuran) amphiphilic conetworks: bicontinuous domain structure in broad composition ranges. RSC Adv 2017. [DOI: 10.1039/c6ra25356c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Compositionally asymmetrical morphologies and cocontinous nanophase-separated structures are formed over a broad composition range, affected by composition and the molecular weights of macromonomers.
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Affiliation(s)
- Csaba Fodor
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
| | - Gergely Kali
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
| | - Ralf Thomann
- Freiburg Materials Research Center and Institute for Macromolecular Chemistry
- University of Freiburg
- D-79104 Freiburg
- Germany
| | - Yi Thomann
- Freiburg Materials Research Center and Institute for Macromolecular Chemistry
- University of Freiburg
- D-79104 Freiburg
- Germany
| | - Béla Iván
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
| | - Rolf Mülhaupt
- Freiburg Materials Research Center and Institute for Macromolecular Chemistry
- University of Freiburg
- D-79104 Freiburg
- Germany
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28
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Renggli K, Sauter N, Rother M, Nussbaumer MG, Urbani R, Pfohl T, Bruns N. Biocatalytic atom transfer radical polymerization in a protein cage nanoreactor. Polym Chem 2017. [DOI: 10.1039/c6py02155g] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The ATRP-catalyzing enzyme horseradish peroxidase was encapsulated into the protein cage thermosome resulting in an all-protein nanoreactor system for controlled radical polymerizations.
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Affiliation(s)
- Kasper Renggli
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
- Department of Biosystems Science and Engineering
| | - Nora Sauter
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Martin Rother
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Martin G. Nussbaumer
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
- Wyss Institute for Biologically Inspired Engineering
| | - Raphael Urbani
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Thomas Pfohl
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Nico Bruns
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
- Adolphe Merkle Institute
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29
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30
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Fraix A, Torrisi V, Marletta G, Sortino S, Mineo PG, Tomaselli GA, Ballistreri FP, Trusso Sfrazzetto G, Pappalardo A. Supramolecular polymer networks based on calix[5]arene chained poly( p-phenyleneethynylene) and C 60 fulleropyrrolidine. Supramol Chem 2016. [DOI: 10.1080/10610278.2015.1122788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Aurore Fraix
- Laboratory of Photochemistry, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Vanna Torrisi
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania and CSGI, Catania, Italy
| | - Giovanni Marletta
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania and CSGI, Catania, Italy
| | - Salvatore Sortino
- Laboratory of Photochemistry, Department of Drug Sciences, University of Catania, Catania, Italy
| | - Placido G. Mineo
- Department of Chemical Sciences, University of Catania, Catania, Italy
| | | | | | | | - Andrea Pappalardo
- Department of Chemical Sciences, University of Catania, Catania, Italy
- I.N.S.T.M. UdR of Catania, Catania, Italy
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31
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32
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Chandel AKS, Kumar CU, Jewrajka SK. Effect of Polyethylene Glycol on Properties and Drug Encapsulation-Release Performance of Biodegradable/Cytocompatible Agarose-Polyethylene Glycol-Polycaprolactone Amphiphilic Co-Network Gels. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3182-92. [PMID: 26760672 DOI: 10.1021/acsami.5b10675] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We synthesized agarose-polycaprolactone (Agr-PCL) bicomponent and Agr-polyethylene glycol-PCL (Agr-PEG-PCL) tricomponent amphiphilic co-network (APCN) gels by the sequential nucleophilic substitution reaction between amine-functionalized Agr and activated halide terminated PCL or PCL-b-PEG-b-PCL copolymer for the sustained and localized delivery of hydrophilic and hydrophobic drugs. The biodegradability of the APCNs was confirmed using lipase and by hydrolytic degradation. These APCN gels displayed good cytocompatibility and blood compatibility. Importantly, these APCN gels exhibited remarkably high drug loading capacity coupled with sustained and triggered release of both hydrophilic and hydrophobic drugs. PEG in the APCNs lowered the degree of phase separation and enhanced the mechanical property of the APCN gels. The drug loading capacity and the release kinetics were also strongly influenced by the presence of PEG, the nature of release medium, and the nature of the drug. Particularly, PEG in the APCN gels significantly enhanced the 5-fluorouracil loading capacity and lowered its release rate and burst release. Release kinetics of highly water-soluble gemcitabine hydrochloride and hydrophobic prednisolone acetate depended on the extent of water swelling of the APCN gels. Cytocompatibility/blood compatibility and pH and enzyme-triggered degradation together with sustained release of drugs show great promise for the use of these APCN gels in localized drug delivery and tissue engineering applications.
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Affiliation(s)
- Arvind K Singh Chandel
- Reverse Osmosis Membrane Division, CSIR and ‡Academy of Scientific and Innovative Research-AcSIR, Central Salt and Marine Chemicals Research Institute , Gijubhai Badheka Marg, Bhavnagar, Gujarat 364002, India
| | - Chinta Uday Kumar
- Reverse Osmosis Membrane Division, CSIR and ‡Academy of Scientific and Innovative Research-AcSIR, Central Salt and Marine Chemicals Research Institute , Gijubhai Badheka Marg, Bhavnagar, Gujarat 364002, India
| | - Suresh K Jewrajka
- Reverse Osmosis Membrane Division, CSIR and ‡Academy of Scientific and Innovative Research-AcSIR, Central Salt and Marine Chemicals Research Institute , Gijubhai Badheka Marg, Bhavnagar, Gujarat 364002, India
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33
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Zhao Z, Fu J, Dhakal S, Johnson-Buck A, Liu M, Zhang T, Woodbury NW, Liu Y, Walter NG, Yan H. Nanocaged enzymes with enhanced catalytic activity and increased stability against protease digestion. Nat Commun 2016; 7:10619. [PMID: 26861509 PMCID: PMC4749968 DOI: 10.1038/ncomms10619] [Citation(s) in RCA: 287] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 01/05/2016] [Indexed: 01/06/2023] Open
Abstract
Cells routinely compartmentalize enzymes for enhanced efficiency of their metabolic pathways. Here we report a general approach to construct DNA nanocaged enzymes for enhancing catalytic activity and stability. Nanocaged enzymes are realized by self-assembly into DNA nanocages with well-controlled stoichiometry and architecture that enabled a systematic study of the impact of both encapsulation and proximal polyanionic surfaces on a set of common metabolic enzymes. Activity assays at both bulk and single-molecule levels demonstrate increased substrate turnover numbers for DNA nanocage-encapsulated enzymes. Unexpectedly, we observe a significant inverse correlation between the size of a protein and its activity enhancement. This effect is consistent with a model wherein distal polyanionic surfaces of the nanocage enhance the stability of active enzyme conformations through the action of a strongly bound hydration layer. We further show that DNA nanocages protect encapsulated enzymes against proteases, demonstrating their practical utility in functional biomaterials and biotechnology.
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Affiliation(s)
- Zhao Zhao
- Center for Molecular Design and Biomimetics, the Biodesign Institute at Arizona State University, Tempe, Arizona 85287, USA
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
| | - Jinglin Fu
- Department of Chemistry, Center for Computational and Integrative Biology, Rutgers University-Camden, Camden, New Jersey 08102, USA
| | - Soma Dhakal
- Department of Chemistry, Single Molecule Analysis Group, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Alexander Johnson-Buck
- Department of Chemistry, Single Molecule Analysis Group, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Minghui Liu
- Center for Molecular Design and Biomimetics, the Biodesign Institute at Arizona State University, Tempe, Arizona 85287, USA
| | - Ting Zhang
- Department of Chemistry, Center for Computational and Integrative Biology, Rutgers University-Camden, Camden, New Jersey 08102, USA
| | - Neal W. Woodbury
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
- Center for Innovations in Medicine, the Biodesign Institute at Arizona State University, Tempe, Arizona 85287, USA
| | - Yan Liu
- Center for Molecular Design and Biomimetics, the Biodesign Institute at Arizona State University, Tempe, Arizona 85287, USA
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
| | - Nils G. Walter
- Department of Chemistry, Single Molecule Analysis Group, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Hao Yan
- Center for Molecular Design and Biomimetics, the Biodesign Institute at Arizona State University, Tempe, Arizona 85287, USA
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, USA
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34
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Zhang L, Zhang C, Peng X, He C. A clean synthesis approach to biocompatible amphiphilic conetworks via reversible addition–fragmentation chain transfer polymerization and thiol–ene chemistry. RSC Adv 2016. [DOI: 10.1039/c5ra25007b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of APCNs from amphiphilic clickable pentablock copolymers with narrow polydispersity were synthesized via RAFT polymerization. The resulting APCNs exhibit unique amphiphilic characters, and can be potentially employed in some biomaterial applications.
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Affiliation(s)
- Li Zhang
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Chengfeng Zhang
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Xiaoquan Peng
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
| | - Chunju He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai
- P. R. China
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35
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Fodor C, Stumphauser T, Thomann R, Thomann Y, Iván B. Poly(N-vinylimidazole)-l-poly(propylene glycol) amphiphilic conetworks and gels: molecularly forced blends of incompatible polymers with single glass transition temperatures of unusual dependence on the composition. Polym Chem 2016. [DOI: 10.1039/c6py00848h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New molecularly forced blends of incompatible poly(N-vinylimidazole) and poly(propylene glycol) polymers with single glass transition temperatures.
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Affiliation(s)
- Csaba Fodor
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
| | - Tímea Stumphauser
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
| | - Ralf Thomann
- Freiburg Materials Research Center
- Albert-Ludwigs University Freiburg
- D-79104 Freiburg
- Germany
| | - Yi Thomann
- Freiburg Materials Research Center
- Albert-Ludwigs University Freiburg
- D-79104 Freiburg
- Germany
| | - Béla Iván
- Polymer Chemistry Research Group
- Institute of Materials and Environmental Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest
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36
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Rother M, Nussbaumer MG, Renggli K, Bruns N. Protein cages and synthetic polymers: a fruitful symbiosis for drug delivery applications, bionanotechnology and materials science. Chem Soc Rev 2016; 45:6213-6249. [DOI: 10.1039/c6cs00177g] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Protein cages have become essential tools in bionanotechnology due to their well-defined, monodisperse, capsule-like structure. Combining them with synthetic polymers greatly expands their application, giving rise to novel nanomaterials fore.g.drug-delivery, sensing, electronic devices and for uses as nanoreactors.
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Affiliation(s)
- Martin Rother
- Department of Chemistry
- University of Basel
- CH-4056 Basel
- Switzerland
| | - Martin G. Nussbaumer
- Wyss Institute for Biologically Inspired Engineering
- Harvard University
- Cambridge
- USA
| | - Kasper Renggli
- Department of Biosystems Science and Engineering
- ETH Zürich
- 4058 Basel
- Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute
- University of Fribourg
- CH-1700 Fribourg
- Switzerland
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37
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Ullah MW, Khattak WA, Ul-Islam M, Khan S, Park JK. Metabolic engineering of synthetic cell-free systems: Strategies and applications. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2015.10.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Schöller K, Toncelli C, Experton J, Widmer S, Rentsch D, Vetushka A, Martin CJ, Heuberger M, Housecroft CE, Constable EC, Boesel LF, Scherer LJ. 2,2′:6′,2′′-Terpyridine-functionalized redox-responsive hydrogels as a platform for multi responsive amphiphilic polymer membranes. RSC Adv 2016. [DOI: 10.1039/c6ra23677d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Amphiphilic polymer co-networks were functionalized with spyropiran and terpyridine yielding multi-responsive membranes with switchable properties and potential applications in drug delivery and medical sensors.
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Affiliation(s)
- Katrin Schöller
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | - Claudio Toncelli
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | - Juliette Experton
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | - Susanne Widmer
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | - Daniel Rentsch
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 8600 Dübendorf
- Switzerland
| | - Aliaksei Vetushka
- Laboratory of Nanostructures and Nanomaterials
- Institute of Physics AS CR
- 162 00 Prague 6
- Czech Republic
| | - Colin J. Martin
- Department of Chemistry
- University of Basel
- 4056 Basel
- Switzerland
| | - Manfred Heuberger
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | | | | | - Luciano F. Boesel
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
| | - Lukas J. Scherer
- Empa, Swiss Federal Laboratories for Materials Science and Technology
- 9014 St. Gallen
- Switzerland
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39
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Rother M, Barmettler J, Reichmuth A, Araujo JV, Rytka C, Glaied O, Pieles U, Bruns N. Self-Sealing and Puncture Resistant Breathable Membranes for Water-Evaporation Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:6620-6624. [PMID: 26418974 DOI: 10.1002/adma.201502761] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/27/2015] [Indexed: 06/05/2023]
Abstract
Breathable and waterproof membranes that self-seal damaged areas are prepared by modifying a poly(ether ester) membrane with an amphiphilic polymer co-network. The latter swells in water and the gel closes punctures. Damaged composite membranes remain water tight up to pressures of at least 1.6 bar. This material is useful for applications where water-vapor permeability, self-sealing properties, and waterproofness are desired, as demonstrated for a medical cooling device.
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Affiliation(s)
- Martin Rother
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Jonas Barmettler
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056, Basel, Switzerland
| | - Andreas Reichmuth
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056, Basel, Switzerland
| | - Jose V Araujo
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Christian Rytka
- Institute of Polymer Engineering, School of Engineering, University of Applied Sciences and Arts Northwestern Switzerland, Klosterzelgstrasse 2, 5210, Windisch, Switzerland
| | - Olfa Glaied
- Institute of Chemistry and Bioanalytics, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Gründenstrasse 40, 4132, Muttenz, Switzerland
| | - Uwe Pieles
- Institute of Chemistry and Bioanalytics, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Gründenstrasse 40, 4132, Muttenz, Switzerland
| | - Nico Bruns
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056, Basel, Switzerland
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
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40
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Kepola EJ, Loizou E, Patrickios CS, Leontidis E, Voutouri C, Stylianopoulos T, Schweins R, Gradzielski M, Krumm C, Tiller JC, Kushnir M, Wesdemiotis C. Amphiphilic Polymer Conetworks Based on End-Linked "Core-First" Star Block Copolymers: Structure Formation with Long-Range Order. ACS Macro Lett 2015; 4:1163-1168. [PMID: 35614799 DOI: 10.1021/acsmacrolett.5b00608] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Amphiphilic polymer conetworks are cross-linked polymers that swell both in water and in organic solvents and can phase separate on the nanoscale in the bulk or in selective solvents. To date, however, this phase separation has only been reported with short-range order, characterized by disordered morphologies. We now report the first example of amphiphilic polymer conetworks, based on end-linked "core-first" star block copolymers, that form a lamellar phase with long-range order. These mesoscopically ordered systems can be produced in a simple fashion and exhibit significantly improved mechanical properties.
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Affiliation(s)
| | | | | | | | | | | | - Ralf Schweins
- Large Scale
Structures Group, Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20 156, Grenoble F-38042 Cedex 9, France
| | - Michael Gradzielski
- Stranski-Laboratorium
für Physikalische und Theoretische Chemie, Institut für
Chemie, Technische Universität Berlin, D-10623 Berlin, Germany
| | - Christian Krumm
- Department
of Biochemical and Chemical Engineering, Technische Universität Dortmund, D-44227 Dortmund, Germany
| | - Joerg C. Tiller
- Department
of Biochemical and Chemical Engineering, Technische Universität Dortmund, D-44227 Dortmund, Germany
| | - Michelle Kushnir
- Department
of Chemistry and Integrated Biosciences Program, University of Akron, Akron, Ohio 44325-3601, United States
| | - Chrys Wesdemiotis
- Department
of Chemistry and Integrated Biosciences Program, University of Akron, Akron, Ohio 44325-3601, United States
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41
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Tejero R, Arbe A, Fernández-García M, López D. Nanostructuration by Self-Assembly in N-Alkyl Thiazolium and Triazolium Side-Chain Polymethacrylates. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01734] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rubén Tejero
- Instituto de Ciencia y Tecnología de Polímeros
(ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Arantxa Arbe
- Materials Physics Center (MPC), Centro de Física de Materiales (CFM) (CSIC-UPV/EHU), Paseo de Manuel Lardizábal,
5, E-20018 San Sebastián, Spain
| | - Marta Fernández-García
- Instituto de Ciencia y Tecnología de Polímeros
(ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Daniel López
- Instituto de Ciencia y Tecnología de Polímeros
(ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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42
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Gao M, Ma L, Liang Y, Gao Y, Luo J. Tip-induced nanoreactor for silicate. Sci Rep 2015; 5:14039. [PMID: 26364882 PMCID: PMC4568475 DOI: 10.1038/srep14039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 08/14/2015] [Indexed: 11/09/2022] Open
Abstract
Nanoscale scientific issues have attracted an increasing amount of research interest due to their specific size-effect and novel structure-property. From macro to nano, materials present some unique chemical reactivity that bulk materials do not own. Here we introduce a facile method to generate silicate with nanoscale control based on the establishment of a confined space between a meso/nanoscale tungsten tip and a smooth silica/silicon substrate. During the process, local water-like droplets deposition can be obviously observed in the confinement between the Si/SiO2 surfaces and the KOH-modified tungsten tip. By the combination of in-situ optical microscopy and Raman spectroscopy, we were able to take a deep insight of both the product composition and the underlying mechanism of such phenomena. It was indicated that such nanoreactor for silicate could be quite efficient as a result of the local capillarity and electric field effect, with implications at both nano and meso scales.
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Affiliation(s)
- Ming Gao
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Liran Ma
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Yong Liang
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Yuan Gao
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
| | - Jianbin Luo
- State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China
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43
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Liu Y, Lei W, Chen T, Jin L, Sun G, Yin B. Poly(aryl ether) Dendrons with Monopyrrolotetrathiafulvalene Unit-Based Organogels exhibiting Gel-Induced Enhanced Emission (GIEE). Chemistry 2015; 21:15235-45. [DOI: 10.1002/chem.201502044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 01/06/2023]
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44
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Guzman G, Nugay T, Nugay I, Nugay N, Kennedy J, Cakmak M. High Strength Bimodal Amphiphilic Conetworks for Immunoisolation Membranes: Synthesis, Characterization, and Properties. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01343] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Turgut Nugay
- Chemistry Department, Polymer Research
Center, Boğaziçi University, 34342 Bebek, Istanbul, Turkey
| | | | - Nihan Nugay
- Chemistry Department, Polymer Research
Center, Boğaziçi University, 34342 Bebek, Istanbul, Turkey
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45
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Affiliation(s)
- Yifei Zhang
- Key Lab for Industrial Biocatalysis,
Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jun Ge
- Key Lab for Industrial Biocatalysis,
Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zheng Liu
- Key Lab for Industrial Biocatalysis,
Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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46
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Amphiphilic polymer conetworks with defined nanostructure and tailored swelling behavior for exploring the activation of an entrapped lipase in organic solvents. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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47
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Wang H, Li N, Zhang J, Wan X. Synthesis and Properties of a Novel Pyridineoxazoline Containing Optically Active Helical Polymer as a Catalyst Ligand for Asymmetric Diels-Alder Reaction. Chirality 2015; 27:523-31. [DOI: 10.1002/chir.22448] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Heng Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of MOE, Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Beijing China
| | - Na Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of MOE, Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Beijing China
| | - Jie Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of MOE, Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Beijing China
| | - Xinhua Wan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of MOE, Center for Soft Matter Science and Engineering; College of Chemistry and Molecular Engineering; Beijing China
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48
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Kapil N, Singh A, Das D. Cross-β Amyloid Nanohybrids Loaded With Cytochrome C Exhibit Superactivity in Organic Solvents. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500981] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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49
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Kapil N, Singh A, Das D. Cross-β Amyloid Nanohybrids Loaded With Cytochrome C Exhibit Superactivity in Organic Solvents. Angew Chem Int Ed Engl 2015; 54:6492-5. [DOI: 10.1002/anie.201500981] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/03/2015] [Indexed: 01/15/2023]
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50
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Salcedo K, Torres-Ramírez E, Haces I, Ayala M. Halogenation of β-estradiol by a rationally designed mesoporous biocatalyst based on chloroperoxidase. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/boca-2015-0001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractChloroperoxidase from Caldariomyces fumago was immobilized in Eupergit® C, a commercial mesoporous acrylic-based material. Due to low stability of the enzyme under neutral and basic pH, the usual covalent immobilization procedures cannot be applied to this enzyme. Several strategies were followed in order to achieve a stable interaction between the protein and the support. The support was efficiently functionalized with different reactive groups such as aromatic and aliphatic amines, glutaraldehyde, diazonium ions, and maleimide moieties; solvent-exposed amino acid residues in chloroperoxidase were identified or created through chemical modification, so that they were reactive under conditions where the enzyme is stable. Enzyme load and retained activity were monitored, obtaining biocatalysts with specific activity ranging from 200 to 25,000 U/g. The highest load and activity was obtained from the immobilization of a chemically-modified CPO preparation bearing a solvent-exposed free thiol group. This biocatalyst efficiently catalyzed the transformation of β-estradiol, an endocrine disruptor.
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